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What functional groups in sunscreens causes absorption in the UV region

Started by yuriljx | Last post by yuriljx January 18, 2010, 02:01:40 PM

0 Replies
4711 Views
Last post January 18, 2010, 02:01:40 PM
by yuriljx
Redox Rxns problems

Started by yuriljx | Last post by cpncoop January 15, 2010, 07:16:22 PM

1 Replies
1881 Views
Last post January 15, 2010, 07:16:22 PM
by cpncoop
how to remove hexane, how to solidify sticky oil?

Started by yusubeen | Last post by GinaTageldin April 16, 2017, 03:43:14 AM

3 Replies
2414 Views
Last post April 16, 2017, 03:43:14 AM
by GinaTageldin
Dismantling of Carbon Dioxide

Started by Yuval | Last post by Yuval October 06, 2007, 12:07:14 PM

4 Replies
3515 Views
Last post October 06, 2007, 12:07:14 PM
by Yuval
Synthesis of 3,3-Dibromohexane from Ethyne

Started by yvblake | Last post by kriggy December 04, 2016, 09:13:26 AM

5 Replies
3343 Views
Last post December 04, 2016, 09:13:26 AM
by kriggy
organic acids

Started by yvonne | Last post by baum0372 December 16, 2010, 12:25:18 AM

2 Replies
2101 Views
Last post December 16, 2010, 12:25:18 AM
by baum0372
can guanidine hydrochloride derivatives react with isocyanate ?

Started by yxw1987 | Last post by sjb October 18, 2011, 12:45:28 PM

2 Replies
2807 Views
Last post October 18, 2011, 12:45:28 PM
by sjb
Extraction, liquid-liquid

Started by yxyx | Last post by yxyx April 12, 2011, 10:25:08 AM

4 Replies
3508 Views
Last post April 12, 2011, 10:25:08 AM
by yxyx
Polymerization

Started by yy | Last post by KritikalMass October 18, 2009, 09:00:06 PM

1 Replies
1994 Views
Last post October 18, 2009, 09:00:06 PM
by KritikalMass
Fehling's reagent & Tollen's reagent

Started by yyyanyy | Last post by FeLiXe October 19, 2006, 08:02:22 AM

3 Replies
19163 Views
Last post October 19, 2006, 08:02:22 AM
by FeLiXe
Synthesis Problem with Aromatic Meta and Ortho Directors

Started by yzhw | Last post by orgopete February 12, 2015, 08:52:01 AM

6 Replies
3044 Views
Last post February 12, 2015, 08:52:01 AM
by orgopete
Electron Withdrawing or Donating Group Substituted Benzenes

Started by yzhw | Last post by yzhw February 12, 2015, 01:18:03 AM

2 Replies
1303 Views
Last post February 12, 2015, 01:18:03 AM
by yzhw
Indicating most basic functional group - quick please

Started by Z.Z | Last post by orgopete October 25, 2016, 06:00:29 PM

2 Replies
1376 Views
Last post October 25, 2016, 06:00:29 PM
by orgopete
help with derivitive

Started by z00mb00m | Last post by Schrödinger October 25, 2010, 04:07:47 PM

1 Replies
2151 Views
Last post October 25, 2010, 04:07:47 PM
by Schrödinger
iodniation of aromatic compounds using electrochemistry

Started by zacfre92 | Last post by zacfre92 April 01, 2015, 10:27:38 PM

0 Replies
1636 Views
Last post April 01, 2015, 10:27:38 PM
by zacfre92
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